Fix custom.css fontfaces

Closes #161

See merge request !165

Resolve "Use something else than Propaganda"

Closes #161

See merge request !164

Fix adresse install_client_deps



See merge request !161

Update development.rst

install_client_deps.sh is not in bin/ but in src/memopol/bin/

See merge request !160

Update development.rst

Removed origin/pr, otherwise:
fatal: Cannot update paths and switch to branch 'yourbranch' at the same time.
Did you intend to checkout 'origin/pr' which can not be resolved as commit?


See merge request !159

CI fixes